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Finding the Fourth Proportional to 185,134.08, 277,643.71 and 66,790.05

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Solution

The fourth proportional to 185,134.08, 277,643.71 and 66,790.05 is: 100,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,134.08 : 277,643.71 = 66,790.05 : x
  2. Step 2: Convert to fraction form
    185,134.08/277,643.71 = 66,790.05/x
  3. Step 3: Cross multiply
    185,134.08x = 277,643.71 × 66,790.05
  4. Step 4: Simplify right side
    185,134.08x = 18,543,837,273.09
  5. Step 5: Solve for x
    x = 18,543,837,273.09/185,134.08
  6. Step 6: Final answer
    x = 100,164.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.